From ba31f62960e4b124d54fa8fd05a3173664c27712 Mon Sep 17 00:00:00 2001
From: Leven <475563418@qq.com>
Date: Thu, 3 Sep 2020 17:52:47 +0800
Subject: [PATCH 1/3] primitive can be used to per-feature postprocess

before this, set primitive selected in the per-feature postprocess had no effect, because they can't get the primitive's pickId or pickIds.
add a readonly property to insure primitive can be used to per-feature postprocess
---
 Source/Scene/Primitive.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Source/Scene/Primitive.js b/Source/Scene/Primitive.js
index 465362ea8836..795041808120 100644
--- a/Source/Scene/Primitive.js
+++ b/Source/Scene/Primitive.js
@@ -487,6 +487,18 @@ Object.defineProperties(Primitive.prototype, {
       return this._readyPromise.promise;
     },
   },
+  
+  /**
+   * get pickIds. insure primitive can be used to per-feature postprocess .
+   * @memberof Primitive.prototype
+   * @type {PickId[]}
+   * @readonly
+   */
+  pickIds: {
+    get: function () {
+      return this._pickIds;
+    }
+ },
 });
 
 function getCommonPerInstanceAttributeNames(instances) {

From c46210538a6244638a9f24ebeb243b6e7b5c726f Mon Sep 17 00:00:00 2001
From: Leven <475563418@qq.com>
Date: Thu, 3 Sep 2020 18:25:16 +0800
Subject: [PATCH 2/3] Update Primitive.js

---
 Source/Scene/Primitive.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/Scene/Primitive.js b/Source/Scene/Primitive.js
index 795041808120..b948abf8aa3a 100644
--- a/Source/Scene/Primitive.js
+++ b/Source/Scene/Primitive.js
@@ -498,7 +498,7 @@ Object.defineProperties(Primitive.prototype, {
     get: function () {
       return this._pickIds;
     }
- },
+  },
 });
 
 function getCommonPerInstanceAttributeNames(instances) {

From 2dfea346692dd7f8783908b32c21dfbe00f44ce8 Mon Sep 17 00:00:00 2001
From: Leven <475563418@qq.com>
Date: Mon, 7 Sep 2020 17:56:54 +0800
Subject: [PATCH 3/3] Update Primitive.js

---
 Source/Scene/Primitive.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/Scene/Primitive.js b/Source/Scene/Primitive.js
index b948abf8aa3a..b9542cc6d68f 100644
--- a/Source/Scene/Primitive.js
+++ b/Source/Scene/Primitive.js
@@ -491,7 +491,7 @@ Object.defineProperties(Primitive.prototype, {
   /**
    * get pickIds. insure primitive can be used to per-feature postprocess .
    * @memberof Primitive.prototype
-   * @type {PickId[]}
+   * @type {Array}
    * @readonly
    */
   pickIds: {